waiting ko

 

. B can wait, until W finds no points.

Malcolm This shape is called bent four in the corner. It is usually dead; there is usually no need to play a ko during the game. It does depend one which ruleset is used however. "Waiting ko" is not a standard term; I don't think it's a very useful one.

 

. Then B starts ko.

 

. Another one. Wait.

Malcolm This shape is dead; White is dead here. It only becomes a ko if Black needs to remove the stones during the game. .

ruf012: Many Thanks

 

. Start

 

if Wa then Bb with 1.diagram above.
B waits with the start of ko
until W has no compensation.

Malcolm Here, the best W can do is Wb, which makes an approach ko: W has to let Black play several times elsewhere in order to make life in the corner. The best B can do is Bb, making a position which which is even weaker than bent four in the corner. After Bb White will be dead in most cases.

 

B has to decide, to allow Wa or
to start ko with Ba, a no waiting ko.
W may find compensation.

W compensation is the difference between
waiting and no waiting ko.
And maybe the use of this term.